Describe facilitated diffusion of ions through the channel proteins

1 answer:

4 0

Facilitated diffusion is usually significant to pass the ions across the hydrophobic layer of the plasma membrane. Transmembrane integral protein and careers proteins provide the channels that allow the ion to pass across the membrane. When an ion bind to their active site on the protein (note that the proteins are very selective), the protein changes conformation. It is this change in conformation opens up the channel that allows the ions to be passed across the membrane. When the ions are released inside of the cell, the protein resumes normal shape (and the channel also closes) and the active site becomes available again or another ion.

You might be interested in

There are 20 different amino acids. What part of an amino acid changes to make each of the 20 amino acids different?

lbvjy [14]

Answer: My precious baby boy the answer to your question is "The R-Group"

Explanation:

3 0

2 years ago

The mass of the Sun is 2x10 kg , and the distance between Neptune and the Sun is 30 AU . What is the orbital period of Neptune i

nexus9112 [7]

The orbital period of Neptune is Earth years is 165 years.

Hope it helps me

3 0

3 years ago

Please Help! What change do we get in membrane potential as a result of acetylcholine binding to nicotinic receptors on skeletal

WARRIOR [948]

Binding of acetylcholine to nicotine cells acetylcholine receptors triggers a rapid increase in permeability of the membrane to both Na+ and K+ ions, leading to DEPOLARIZATION.

5 0

3 years ago

Explain a situation in which a cell would need to use an input of energy to

DaniilM [7]

Some ions that the cell needs to transfer out would be Ca+, Na+, K+, and Cl– and in order to transport those materials the cell needs to use ATP powered pumps on the cell membrane. Hope that this helps :)

4 0

3 years ago

Baby scorpions are born with fully developed bodies, each with many special parts such as a stinging tail. Which process enables

Aleksandr-060686 [28]

Answer:

Explanation:

Every organism, even the almighty elephant, starts as a single cell. This single cell continually divides mitotically to form the adult organism. Contained in this single cell, is a DNA, coding for all proteins the adult organism will use. All these proteins will not be expressed at once, rather the cells keep dividing and as they divide they undergo gene expression to become specific types of cells. This process is called CELL DIFFERENTIATION.

Cell differentiation is the process by which dividing cells change their function or phenotypic type. Eventually, an organism with hundreds of different types of cells is formed by this process of cell differentiation.

After fertilization in animals (scorpion inclusive), a single celled zygote is formed. This zygote is totipotent i.e. capable of repeated division to form differentiated cells The cells of zygote then undergoes division and during the division, it becomes differentiated to form complex tissues and organs which make up the its body parts including its stinging tail. All cells emanate from the stem cells and becomes specialized as they mature.

N.B: the original mass of cells yet to undergo differentiation are known as STEM CELLS and they are contained in the zygote.

6 0

3 years ago